ZF2 count rows in database - php

Question

Hi i have this problem: i want to count rows in ZF2 in database and i use this code in controller:
public function getProductTable()
{
if (!$this->productTable) {
$sm = $this->getServiceLocator();
$this->productTable = $sm->get('Product\Model\ProductTable');
}
return $this->productTable;
}
public function productCounter($user_id){
//product Count
$productCount = $this->getProductTable()->select(); // error reported on this line
return $productCount->from("product")->where(array('user_id' => $user_id))->count();
}
function getProductTable() is working because i use it on other lines. mistake is reported on marked line in code. Where is my mistake? .. Thanks for answers

Answer 1

Change the productCounter function to this
public function productCounter($user_id) {
return $this->getProductTable()->select(array('user_id' => $user_id))->count();
}
Select method returns the results right away, not the Select object.

Answer 2

I hope along with getProductTable() and productCounter() functions you also have the following constructor too;
protected $tableGateway;
.....
...
public function __construct(TableGateway $tableGateway) {
$this->tableGateway = $tableGateway;
}`
If so then try this -
public function productCounter($user_id) {
return $this->tableGateway->select(array('user_id' => $user_id))->count();
}
This should work fine.
Now if you don't have such a constructor then there is lot to be done if you want to use the TableGateway for executing the queries -
Have such a constructor first. //Important
In Product\Module.php -
'Product\Model\ProductTable' => function($sm) {
$tableGateway = $sm->get('ProductTableGateway');
$table = new ProductTable($tableGateway);
return $table;
},
'ProductTableGateway' => function ($sm) {
$dbAdapter = $sm->get('Zend\Db\Adapter\Adapter');
$resultSetPrototype = new ResultSet();
$resultSetPrototype->setArrayObjectPrototype(new Product());
return new TableGateway('product', $dbAdapter, null, $resultSetPrototype);
},
Now try that productCounter() function.
I hope it helps.